It is simple to find the study library in your WordGo app, although only group guides, or those studying alone will be able to change the study.
First you navigate to the 'Profile' icon which is the bottom right of your screen.
You then select 'Course Library'.
You can browse the available studies and tap on one to open up a helpful description. Once you have scrolled to the bottom of this page you can select 'Start Course' or go back to the study library to find a different course.
If you have any further assistance please raise a ticket here to contact a WordGo customer support agent.